18910120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27809}}^1$

素因数の和:27837

約数の個数: 32

約数和(自身を含む): 45052200

約数和(自身を除く): 26142080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27809, 55618, 111236, 139045, 222472, 278090, 472753, 556180, 945506, 1112360, 1891012, 2363765, 3782024, 4727530, 9455060, 18910120]

約数ペア:

[(1, 18910120), (2, 9455060), (4, 4727530), (5, 3782024), (8, 2363765), (10, 1891012), (17, 1112360), (20, 945506), (34, 556180), (40, 472753), (68, 278090), (85, 222472), (136, 139045), (170, 111236), (340, 55618), (680, 27809)]